2023年 12 月 25 号，本文正在手打中。未完...
官网：https://seata.io/
介绍：http://www.dreamwu.com/post-1741.html
版本
| 组件 | 版本 |
|---|---|
| SpringBoot | 2.3.12.RELEASE |
| SpringCloud | Hoxton.SR12 |
| SpringCloudAlibaba | 2.2.10-RC1 |
| Nacos | 2.2.0 |
| Sentinel | 1.8.6 |
| Seata | 1.6.1 |
安装 Seata 服务端
下载
下载地址：https://github.com/apache/incubator-seata/releases/tag/v1.6.1
配置 Seata 配置文件
解压完成后，修改：\seata\conf\application.yml文件
seata:
config:
# 配置中心类型，选择使用nacos
type: nacos
nacos:
# nacos服务地址
server-addr: 127.0.0.1:8848
# nacos组
group: SEATA_GROUP
# nacos命名空间
namespace: seata
# 有权限读写命名空间的账号密码，无鉴权不需要
username: dev
password: 123456
# seata在nacos上读取的配置文件
data-id: seataServer.properties
registry:
# 注册中心类型，选择使用nacos
type: nacos
nacos:
# nacos服务地址
server-addr: 127.0.0.1:8848
# 制定 seata 服务名称，就像SpringBoot的 spring.application.name 一样
application: seata-tc-server
# nacos组
group: SEATA_GROUP
# nacos命名空间
namespace: seata
username: dev
password: 123456
# 自定义seata服务集群名称
cluster: AAAapplication.yml 完整内容如下：
server:
port: 7091
spring:
application:
name: seata-server
logging:
config: classpath:logback-spring.xml
file:
path: ${user.home}/logs/seata
extend:
logstash-appender:
destination: 127.0.0.1:4560
kafka-appender:
bootstrap-servers: 127.0.0.1:9092
topic: logback_to_logstash
console:
user:
username: seata
password: seata
seata:
config:
# 配置中心类型，选择使用nacos
type: nacos
nacos:
# nacos服务地址
server-addr: 127.0.0.1:8848
# nacos组
group: SEATA_GROUP
# nacos命名空间
namespace: seata
# 有权限读写命名空间的账号密码，无鉴权不需要
username: dev
password: 123456
# seata在nacos上读取的配置文件
data-id: seataServer.properties
registry:
# 注册中心类型，选择使用nacos
type: nacos
nacos:
# nacos服务地址
server-addr: 127.0.0.1:8848
# 制定 seata 服务名称，就像SpringBoot的 spring.application.name 一样
application: seata-tc-server
# nacos组
group: SEATA_GROUP
# nacos命名空间
namespace: seata
username: dev
password: 123456
# 自定义seata服务集群名称
cluster: AAA
# server:
# service-port: 8091 #If not configured, the default is '${server.port} + 1000'
security:
secretKey: SeataSecretKey0c382ef121d778043159209298fd40bf3850a017
tokenValidityInMilliseconds: 1800000
ignore:
urls: /,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/api/v1/auth/login配置 Seata 持久化方式
这里我们使用 DB mysql数据库的方式
1，新建名称为 seata 数据库
2，向数据库中导入seata解压包路径文件 \seata\script\server\db\mysql.sql
mysql.sql 内容如下：
-- -------------------------------- The script used when storeMode is 'db' --------------------------------
-- the table to store GlobalSession data
CREATE TABLE IF NOT EXISTS `global_table`
(
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`status` TINYINT NOT NULL,
`application_id` VARCHAR(32),
`transaction_service_group` VARCHAR(32),
`transaction_name` VARCHAR(128),
`timeout` INT,
`begin_time` BIGINT,
`application_data` VARCHAR(2000),
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`xid`),
KEY `idx_status_gmt_modified` (`status` , `gmt_modified`),
KEY `idx_transaction_id` (`transaction_id`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
-- the table to store BranchSession data
CREATE TABLE IF NOT EXISTS `branch_table`
(
`branch_id` BIGINT NOT NULL,
`xid` VARCHAR(128) NOT NULL,
`transaction_id` BIGINT,
`resource_group_id` VARCHAR(32),
`resource_id` VARCHAR(256),
`branch_type` VARCHAR(8),
`status` TINYINT,
`client_id` VARCHAR(64),
`application_data` VARCHAR(2000),
`gmt_create` DATETIME(6),
`gmt_modified` DATETIME(6),
PRIMARY KEY (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
-- the table to store lock data
CREATE TABLE IF NOT EXISTS `lock_table`
(
`row_key` VARCHAR(128) NOT NULL,
`xid` VARCHAR(128),
`transaction_id` BIGINT,
`branch_id` BIGINT NOT NULL,
`resource_id` VARCHAR(256),
`table_name` VARCHAR(32),
`pk` VARCHAR(36),
`status` TINYINT NOT NULL DEFAULT '0' COMMENT '0:locked ,1:rollbacking',
`gmt_create` DATETIME,
`gmt_modified` DATETIME,
PRIMARY KEY (`row_key`),
KEY `idx_status` (`status`),
KEY `idx_branch_id` (`branch_id`),
KEY `idx_xid` (`xid`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
CREATE TABLE IF NOT EXISTS `distributed_lock`
(
`lock_key` CHAR(20) NOT NULL,
`lock_value` VARCHAR(20) NOT NULL,
`expire` BIGINT,
primary key (`lock_key`)
) ENGINE = InnoDB
DEFAULT CHARSET = utf8mb4;
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('AsyncCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryCommitting', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('RetryRollbacking', ' ', 0);
INSERT INTO `distributed_lock` (lock_key, lock_value, expire) VALUES ('TxTimeoutCheck', ' ', 0);效果如下：
3，配置 seata 连接 mysql 配置
打开 nacos 服务，新建 名称为 seataServer.properties 的配置文件。这个配置文件的名称在 \seata\conf\application.yml 文件的 seata.config.nacos 属性指定
seataServer.properties 配置内容如下：
# 数据存储方式，db代表数据库
store.mode=db
store.db.datasource=druid
store.db.dbType=mysql
store.db.driverClassName=com.mysql.jdbc.Driver
store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
store.db.user=root
store.db.password=123456
store.db.minConn=5
store.db.maxConn=30
store.db.globalTable=global_table
store.db.branchTable=branch_table
store.db.queryLimit=100
store.db.lockTable=lock_table
store.db.maxWait=5000
# 事务、日志等配置
server.recovery.committingRetryPeriod=1000
server.recovery.asynCommittingRetryPeriod=1000
server.recovery.rollbackingRetryPeriod=1000
server.recovery.timeoutRetryPeriod=1000
server.maxCommitRetryTimeout=-1
server.maxRollbackRetryTimeout=-1
server.rollbackRetryTimeoutUnlockEnable=false
server.undo.logSaveDays=7
server.undo.logDeletePeriod=86400000
# 客户端与服务端传输方式
transport.serialization=seata
transport.compressor=none
# 关闭metrics功能，提高性能
metrics.enabled=false
metrics.registryType=compact
metrics.exporterList=prometheus
metrics.exporterPrometheusPort=9898
